STRUCTURES Engineeringcivil.com-M30 Mix Designs as Per IS102622009
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Transcript of STRUCTURES Engineeringcivil.com-M30 Mix Designs as Per IS102622009
engineeringcivil.co m http://www.engineeringcivil.com/m-30-mix-designs-as-per-is-10262-2009.html
M-30 Mix Designs as per IS-10262-2009Posted in Mix Design | Email This Post |
Dear All
Again I am back with M-30 Mix Designs as per IS-10262-2009RegardsRaj Mohammad Khan
M-30 CONCRETE MIX DESIGN
As per IS 10262-2009 & MORT&H
A-1 Stipulations for Proportioning
1 Grade Designation M30
2 Type of Cement OPC 53 grade conf irming to IS-12269-1987
3 Maximum Nominal Aggregate Size 20 mm
4 Minimum Cement Content (MORT&H 1700-3 A) 310 kg/m3
5 Maximum Water Cement Ratio (MORT&H 1700-3 A) 0.45
6 Workability (MORT&H 1700-4) 50-75 mm (Slump)
7 Exposure Condition Normal
8 Degree of Supervision Good
9 Type of Aggregate Crushed Angular Aggregate
10 Maximum Cement Content (MORT&H Cl. 1703.2) 540 kg/m3
11 Chemical Admixture Type Superplasticiser Conf irming to IS-9103
A-2 Test Data for Materials
1 Cement Used Coromandal King OPC 53 grade
2 Sp. Gravity of Cement 3.15
3 Sp. Gravity of Water 1.00
4 Chemical Admixture BASF Chemicals Company
5 Sp. Gravity of 20 mm Aggregate 2.884
6 Sp. Gravity of 10 mm Aggregate 2.878
7 Sp. Gravity of Sand 2.605
8 Water Absorption of 20 mm Aggregate 0.97%
9 Water Absorption of 10 mm Aggregate 0.83%
10 Water Absorption of Sand 1.23%
11 Free (Surf ace) Moisture of 20 mm Aggregate nil
12 Free (Surf ace) Moisture of 10 mm Aggregate nil
13 Free (Surf ace) Moisture of Sand nil
14 Sieve Analysis of Individual Coarse Aggregates Separate Analysis Done
15 Sieve Analysis of Combined Coarse Aggregates Separate Analysis Done
15 Sp. Gravity of Combined Coarse Aggregates 2.882
16 Sieve Analysis of Fine Aggregates Separate Analysis Done
A-3 Target Strength for Mix Proportioning
1 Target Mean Strength (MORT&H 1700-5) 42N/mm2
2 Characteristic Strength @ 28 days 30N/mm2
A-4 Selection of Water Cement Ratio
1 Maximum Water Cement Ratio (MORT&H 1700-3 A) 0.45
2 Adopted Water Cement Ratio 0.42
A-5 Selection of Water Content
1 Maximum Water content (10262-table-2) 186 Lit.
2 Estimated Water content f or 50-75 mm Slump 160 Lit.
3 Superplasticiser used 0.5 % by wt. of cement
A-6 Calculation of Cement Content
1 Water Cement Ratio 0.42
2 Cement Content (160/0.42) 380 kg/m3
Which is greater then 310 kg/m3
A-7 Proportion of Volume of Coarse Aggregate & Fine Aggregate Content
1 Vol. of C.A. as per table 3 of IS 10262 62.00%
2 Adopted Vol. of Coarse Aggregate 62.00%
Adopted Vol. of Fine Aggregate ( 1-0.62) 38.00%
A-8 Mix Calculations
1 Volume of Concrete in m3 1.00
2 Volume of Cement in m3 0.12
(Mass of Cement) / (Sp. Gravity of Cement)x1000
3 Volume of Water in m3 0.160
(Mass of Water) / (Sp. Gravity of Water)x1000
4 Volume of Admixture @ 0.5% in m3 0.00160
(Mass of Admixture)/(Sp. Gravity of Admixture)x1000
5 Volume of All in Aggregate in m3 0.718
Sr. no. 1 – (Sr. no. 2+3+4)
6 Volume of Coarse Aggregate in m3 0.445
Sr. no. 5 x 0.62
7 Volume of Fine Aggregate in m3 0.273
Sr. no. 5 x 0.38
A-9 Mix Proportions for One Cum of Concrete (SSD Condition)
1 Mass of Cement in kg/m3 380
2 Mass of Water in kg/m3 160
3 Mass of Fine Aggregate in kg/m3 711
4 Mass of Coarse Aggregate in kg/m3 1283
Mass of 20 mm in kg/m3 924
Mass of 10 mm in kg/m3 359
5 Mass of Admixture in kg/m3 1.90
6 Water Cement Ratio 0.42
We are thankf ul to Er. Raj M. Khan f or sharing this inf ormation with us on engineeringcivil.com. We hopethis would be of great signif icance to civil engineers.